Jack Robinson has held his nerve to eliminate Gabriel Medina in Hawaii but now must find a way through red-hot local hope John John Florence in the quarter-finals of the World Surf League's season-opener in Hawaii.
World No.3 Robinson will be joined by countryman Liam O'Brien in the last eight at Pipeline, while Tyler Wright had already made the women's semi-finals.
Robinson found two barrels to notch an 11.50 total in the heat of Tuesday's action, with Medina (10.40) unable to find another score to complement his heat-best 6.73 wave.